/**
 * 通用js方法封装处理
 * Copyright (c) 2019 aidex
 */

// 日期格式化
export function parseTime (time, pattern) {
	if (arguments.length === 0 || !time) {
		return null
	}
	const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}'
	let date
	if (typeof time === 'object') {
		date = time
	} else {
		if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
			time = parseInt(time)
		} else if (typeof time === 'string') {
			time = time.replace(new RegExp(/-/gm), '/')
		}
		if ((typeof time === 'number') && (time.toString().length === 10)) {
			time = time * 1000
		}
		date = new Date(time)
	}
	const formatObj = {
		y: date.getFullYear(),
		m: date.getMonth() + 1,
		d: date.getDate(),
		h: date.getHours(),
		i: date.getMinutes(),
		s: date.getSeconds(),
		a: date.getDay()
	}
	const timeStr = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
		let value = formatObj[key]
		// Note: getDay() returns 0 on Sunday
		if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
		if (result.length > 0 && value < 10) {
			value = '0' + value
		}
		return value || 0
	})
	return timeStr
}

// 表单重置
export function resetForm (refName) {
	if (this[refName]) {
		this[refName].resetFields()
	}
}

// 添加日期范围
export function addDateRange (params, dateRange, propName) {
  const query = params
  // 得到时间范围的字段名称
  const beginField = propName ? propName + 'BeginTime' : 'beginTime'
  const endField = propName ? propName + 'EndTime' : 'endTime'
  // 处理时间范围的名称
	if (dateRange !== null && dateRange !== '' && dateRange.length === 2) {
    query[beginField] = dateRange[0] + ' 00:00:00'
    query[endField] = dateRange[1] + ' 23:59:59'
	} else {
    query[beginField] = undefined
    query[endField] = undefined
  }
  return query
}

// 字符串格式化(%s )
export function sprintf (str) {
	var args = arguments
	var flag = true
	var i = 1
	str = str.replace(/%s/g, function () {
		var arg = args[i++]
		if (typeof arg === 'undefined') {
			flag = false
			return ''
		}
		return arg
	})
	return flag ? str : ''
}

// 转换字符串，undefined,null等转化为''
export function praseStrEmpty (str) {
	if (!str || str === 'undefined' || str === 'null') {
		return ''
	}
	return str
}

/**
 * 构造树型结构数据
 * @param {*} data 数据源
 * @param {*} id id字段 默认 'id'
 * @param {*} parentId 父节点字段 默认 'parentId'
 * @param {*} children 孩子节点字段 默认 'children'
 * @param {*} rootId 根Id 默认 0
 */
export function handleTree (data, id, parentId, children, rootId) {
	id = id || 'id'
	parentId = parentId || 'parentId'
	children = children || 'children'
	rootId = rootId || '0'
	// 对源数据深度克隆
	const cloneData = JSON.parse(JSON.stringify(data))
	// 循环所有项
	const treeData = cloneData.filter(father => {
		var branchArr = cloneData.filter(child => {
			// 返回每一项的子级数组
			return father[id] === child[parentId]
		})

		if (branchArr.length > 0) {
			father.children = branchArr
		} else {
			father.children = ''
		}
		// 返回第一层
		return father[parentId] === rootId
	})
	return treeData !== '' && treeData == null ? treeData : data
}
/**
 * 从树中移除指定节点
 * @param {Object} list
 * @param {Object} node
 */
export function removeTreeNode(list, node, idName) {
  const parentList = list
  const currentNodeId = node[idName]
  deleteTreeNode(parentList, list, currentNodeId, idName)
}
export function deleteTreeNode (parentList, list, currentNodeId, idName) {
  for (let s = 0; s < list.length; s++) {
    if (list[s][idName] === currentNodeId) {
      list.splice(s, 1)
      return
    } else if (list[s].children && list[s].children.length > 0) { // 递归条件
      deleteTreeNode(list[s], list[s].children, currentNodeId, idName)
    } else {
      continue
    }
  }
}
export function appendTreeNode (node, data) {
  if (node.children.length === 0) {
    node.children.push(data)
  } else {
    const children = node.children
    if (children.length > 0) {
      // 有子节点则直接push数据，否则不做操作等待异步加载
       node.children.push(data)
    }
  }
}

/**
 * 按展开几层展开树
 * @param {Object} nodes
 * @param {Object} expandLevel
 * @param {Object} expandedRowKeys 记录展开key
 */
export function expandTree (nodes, expandLevel, expandedRowKeys) {
  if (expandLevel > 1) {
    // 最后一层不展开
    nodes.forEach(node => {
      expandedRowKeys.push(node.id)
      expandLevel = expandLevel - 1
      return expandTree(node.children, expandLevel, expandedRowKeys)
    })
  }
}

// 验证是否为blob格式
export async function blobValidate(data) {
  try {
    const text = await data.text()
    JSON.parse(text)
    return false
  } catch (error) {
    return true
  }
}

/**
 * 驼峰转下划线
 * @param {String} value 名称
 */
export function toLowerLine(value) {
  var temp = value.replace(/[A-Z]/g, function (match) {
    return '_' + match.toLowerCase()
  })
  // 如果首字母是大写，执行ｒｅｐｌａｃｅ时会多一个_，这里需要去掉
  if (temp.slice(0, 1) === '_') {
    temp = temp.slice(1)
  }
  return temp
}

/**
 * 下划线转驼峰
 * @param {String} value 名称
 */
export function toCamel(value) {
  return value.replace(/([^_])(?:_+([^_]))/g, function ($0, $1, $2) {
    return $1 + $2.toUpperCase()
  })
}
